Polyacetylene, (CH)/sub x/, as an emerging material for solar cell applications. Technical progress report, October, November, December 1979

Technical Report · Thu Feb 14 00:00:00 EST 1980

DOI:https://doi.org/10.2172/5430541· OSTI ID:5430541

Heeger, A. J.; MacDiarmid, A. G.

Initial studies of p-n heterojunctions formed between undoped trans-(CH)/sub x/ and n-CdS are reported. The junctions were characterized by measurements of current vs voltage (I-V), capacitance vs voltage (C-V), and photovoltaic response spectra. The results are analyzed in terms of the standard heterojunction equations. It is concluded that undoped as-grown films of trans-(CH)/sub x/ are p-type with a residual acceptor concentration of 2 x 10/sup 18/ cm/sup -3/, and that in spite of the complex fibril morphology the semiconductor properties can be inferred by treating (CH)/sub x/ as an effective homogeneous medium. Detailed studies of the photovoltaic response at energies below the energy gap for (CH)/sub x/ imply the existence of a well-defined deep trapping state in polyacetylene with an energy near the center of the gap.

• Research Organization: Univ. of Pennsylvania, Philadelphia, PA (United States)
• DOE Contract Number: AC04-79ET23002
• OSTI ID: 5430541
• Report Number(s): DOE/ET/23002-T7
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
CADMIUM SULFIDE SOLAR CELLS
FABRICATION
ORGANIC POLYMERS
P-N JUNCTIONS
PHOTOVOLTAIC EFFECT
ORGANIC SOLAR CELLS
CADMIUM SULFIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY GAP
FILMS
ISOMERIZATION
MORPHOLOGY
PERFORMANCE
TRAPS
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DIRECT ENERGY CONVERTERS
EQUIPMENT
INORGANIC PHOSPHORS
JUNCTIONS
ORGANIC COMPOUNDS
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
POLYMERS
SEMICONDUCTOR JUNCTIONS
SOLAR CELLS
SOLAR EQUIPMENT
SULFIDES
SULFUR COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion